Locking bar anti-theft device for container

ABSTRACT

The present invention discloses a locking bar anti-theft device for container. It will still be effective in preventing the handle from disengaging from the handle hub even if the rivet is damaged; in addition, an internal structure is utilized so that the structure cannot be damaged, thus enhancing the safety of containers. Wherein a projection is provided on a plane by the side of the rivet hole at the front end of the handle corresponding to the sidewall of the handle hub; a guide groove is provided in the inner surface of the sidewall of the handle hub so as to guide the projection of the handle to enter the cavity of the handle hub; a rotary groove is provided in the inner surface of the sidewall of the handle hub so as to rotate the projection around the rivet after the handle is hinged to the handle hub; the guide groove communicates with the rotary groove; when the handle and the handle hub are hinged by the rivet, the projection is disengaged from the guide groove and enter the rotary groove; when the container is locked, the other end of the handle is fixed after driving the projection to rotate a certain angle inside the rotary groove.

TECHNICAL FIELD

The present invention relates to a locking bar anti-theft device forcontainer.

BACKGROUND ART

As shown in FIG. 1, it is a locking bar anti-theft device for thegeneral container, comprising a locking bar 1; a handle hub 2; a rivet3; a bush 4; a retainer catch 5; a retainer plate 6; a customs seal 7;and a handle 8. The handle hub 2 is fixed at the locking bar 1. Rivetholes are provided both at the front part of the handle 8 and on theU-shaped handle hub 2. The handle 8 is connected to the handle hub 2 bythe rivet 3. When the container door is shut, the handle 8 is held in aslot of the retainer plate 6 and the retainer catch 5 is put down, andthen customs functionaries will penetrate the customs seal 7 into theretainer catch 5 and the handle hole. The seal head is combined by thetwo. Because the handle 8 is connected to the handle hub 2 by the rivet3, the handle can be disengaged easily from the handle hub if the rivet3 is damaged, as shown in FIG. 2. Therefore, this disadvantage of thecontainer is often used by lawbreakers to steal goods without damagingthe customs seal.

The main principle of anti-theft handle developed under existingtechnology is as follows: a projection is provided near left side orleft upper surface of the supporting slot of the retainer plate on thefront of the handle position; the projection is used to prevent thehandle from moving to the right in the slot of the retainer plate; thuswhen the rivet is damaged, the projection will still effectively preventthe handle from disengaging from the handle hub, and the container doorcannot be opened.

However, the projection on the handle is exposed, once damaged, it willbe impossible to effectively prevent the handle from being detached fromthe handle hub, the lawbreakers thus still have the possibility tochisel off the projection to commit a theft.

DISCLOSURE OF INVENTION

The technical problem that the present invention aims to solve is toprovide a locking bar anti-theft device for container, which will stilleffectively prevent the handle from disengaging from the handle hub evenif the rivet is damaged; and an internal structure is utilized so thatthe structure cannot be damaged, thus enhancing the safety of thecontainer.

To solve the above technical problem, the present invention provides Aanti-theft locking bar anti-theft device for container, installed on adoor of the container, comprising a lock bar, a handle hub, a rivet, ahandle, a retainer plate and a retainer catch; the handle hub consistingof U-shaped components or cloak-like components, on which a cavity isprovided for the front end of the handle to be inserted; rivet holes areprovided on the opposite sidewalls of the cavity; one of the oppositesidewalls is fixed on the lock bar of the door of the container; a rivethole is provided on the front end of the handle to be hinged with thehandle hub; when the container is locked, the front end of the handle isinserted into the cavity of the handle hub and is hinged to the handlehub by the rivet; and the other end of the handle is held between theretainer plate and the retainer catch; wherein a projection is providedon a plane by the side of the rivet hole at the front end of the handlecorresponding to the sidewall of the handle hub; a guide groove isprovided in the inner surface of the sidewall of the handle hub so as toguide the projection of the handle to enter the cavity of the handlehub; a rotary groove is provided in the inner surface of the sidewall ofthe handle hub so as to rotate the projection around the rivet after thehandle is hinged to the handle hub; the guide groove communicates withthe rotary groove; when the handle and the handle hub are hinged by therivet, the projection is disengaged from the guide groove and enter therotary groove; when the container is locked, the other end of the handleis fixed after driving the projection to rotate a certain angle insidethe rotary groove.

According to the present invention, the anti-theft handle hub with theguide groove and the rotary groove and the anti-theft handle with theprojection are used. Even if the rivet of the handle and the handle hubof container is chiseled off or damaged, the guide groove and rotarygroove inside the handle hub as well as the projection of the handlecannot be damaged since they are well concealed. When the container islocked, the projection is disengaged from the guide groove and islocated inside the rotary groove after rotating a certain angle, and ithas to return from the guide groove if it needs to be extricated, whichmakes it impossible for the handle to be disengaged from the handle hub.Therefore the container cannot be opened, theft is avoided and thesecurity of containerized cargo is guaranteed.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is the assembly drawing of prior art before the rivet is removed;

FIG. 2 is the assembly drawing of prior art after the rivet is removed;

FIG. 3 is the front view of the handle structure of the presentinvention with projections on both sides;

FIG. 4 is the bottom view of the handle structure of the presentinvention with projections on both sides;

FIG. 5 is the top view of the handle structure of the present inventionwith projections on both sides;

FIG. 6 is the front view of the handle structure of the presentinvention with projections on single side;

FIG. 7 is the bottom view of the handle structure of the presentinvention with projections on single side;

FIG. 8 is the structure drawing of the handle hub of the presentinvention with grooves in both sides;

FIG. 9 is the structure drawing of the handle hub of the presentinvention with grooves in single side;

FIG. 10 is the structure drawing of the present invention in use;

FIG. 11 is an assembly structure drawing of the handle with projectionson its both sides and the handle hub according to the present invention;

FIG. 12 is the assembly structure drawing of the handle with projectionson its single side and the handle hub according to the presentinvention.

PREFERRED EMBODIMENT

Further description of the present invention will be given as followscombining figures and embodiments.

In FIG. 3 to FIG. 7, structure diagrams of the handle of the presentinvention are shown. As shown in FIG. 3-5, there are respectively thefront view, the bottom view and the top view of the handle structurewith projections on its both sides according to the present invention.It can be seen that four projections 10, 11, 12 and 13 are provided bythe side of the rivet hole 9 on the top and bottom sides of the handle8, which are positioned along the longitudinal central axis of thehandle 8. As shown in FIG. 6 and FIG. 7, which are respectively thefront view and the bottom view of the handle structure with projectionson its single side according to the present invention, it can be seenthat two projections 14 and 15 are provided by the side of the rivethole 9 on the top side of the handle 8, which are located along thelongitudinal central axis of the handle 8.

The number of projections provided on the handle 8 can be decided as itis needed. Generally, one projection will suffice, or more than twoprojections are provided. In addition, if needed, projections can beprovided on either one surface or both surfaces of the handle 8.

As shown in FIG. 8 and FIG. 9, these are structure drawings of theanti-theft handle hub according to the present invention. As shown inFIG. 8, it is the structure drawing of the handle hub with grooves inboth sides according to the present invention, wherein FIG. 8.a is frontview of handle hub with partial section, FIG. 8.b is left view of thehandle hub, and FIG. 8.c is sectional view of the handle hub along therivet hole. The guide groove 20 and the rotary groove 19 are provided inthe inner surface of both sidewalls 16 and 17 of the handle hub 2, andthe rotary groove 19 and the rivet hole 18 are positioned coaxially.

As shown in FIG. 9, it is the structure drawing of the handle hub withgroove in single side according to the present invention, wherein FIG.9.a is the front view of handle hub with partial section, FIG. 9.b isleft view of the handle hub, and FIG. 9.c is the sectional view of thehandle hub along the rivet hole. The guide groove 20 and the rotarygroove 19 are positioned in the inner surface of the sidewall 16 of thehandle hub 2, and the rotary groove 19 and the rivet hole 18 arepoisoned coaxially; while no guide groove or rotary groove is providedin the inner surface of the sidewall 17.

Alternatively, the rotary groove 19 is not provided with wall on theside adjacent to the rivet hole of the handle hub. For example, as shownin FIG. 8 and FIG. 9, the rotary groove 19 and the rivet hole 18 arepositioned coaxially so as to facilitate processing, and it will sufficeto process only one counter bore. If needed, the rotary groove can beprovided with two walls.

As shown in FIG. 10, it is the structure drawing according to thepresent invention in use, which is the same as the installation statusaccording to prior art. The handle hub 2 is fixed on the lock bar 1.Rivet holes are both provided at the front part of the handle 8 and inthe U-shaped handle hub 2. The handle 8 is connected to the handle hub 2by the rivet 3. When the container door is shut, the handle 8 is held inthe slot of the retainer plate 6 and the retainer catch 5 is put down,and then customs functionaries will penetrate the customs seal 7 intothe retainer catch 5 and the handle hole.

The differences between the present invention and the prior art are inthat: when the handle 8 enters the handle hub 2, because of theprojections 14 and 15 provided on the handle 8, it has to enter thecavity of the handle hub 2 from the guide groove 20 of the handle hub 2.When the container door is shut after the rivet 3 is installed, theprojections 14 and 15 will rotate certain angle along the rotary groove19 of the handle hub 2, and then the other end of the handle 8 is fixedwithin the retainer plate 6.

In FIG. 10, the position of the entry of the guide groove 20 is verticaldown. Of course, the entry can also be provided in any position thatmakes it possible for the handle and the projections 14 and 15 to enterinto the handle hub, such as below the horizontal position and above thevertical position.

In addition, because the projections 14 and 15 can only enter or exitfrom the guide groove 20, the projections 14 and 15 will be alreadylocated in the rotary groove 19 after the container is shut. If therivet is damaged, the handle 8 will still be fixed inside the rotarygroove of the handle hub 2 due to the function of the projections 14 and15. If the handle 8 is to be removed, it has to be rotated certain angleto return into the guide groove 20 and then be removed along the guidegroove 20, thus sufficient horizontal and vertical displacement will berequired. However, such displacement is almost impossible, because themovement of the handle is restricted by the handle hub 2 and theretainer plate 6, unless by damaging the customs seal 7 on the retainerplate.

As shown in FIG. 11, it is the assembly structure drawing of the handlewith projections on its both sides and the handle hub according to thepresent invention. The handle 8 is hinged to the handle hub by the rivet3, and the guide groove 20 and the rotary groove 19 are provided in theinner surface of the both sidewalls 16 and 17 of the handle hub. As canbe seen from the section view, the projections 21 and 22 of the handle 8are located in the guide groove 20 and the rotary groove 19 positionedthe handle hub 2. Because the guide groove 20 and the rotary groove 19are well concealed and cannot be damaged, the container door cannot beopened by lawbreakers and theft is avoided. Therefore, the presentinvention can fully guarantee the security of lock bar.

As shown in FIG. 12, it is the assembly structure drawing of the handlewith projections on its single side and the handle hub according to thepresent invention. The guide groove 20 and the rotary groove 19 areprovided in the inner surface of the sidewall 16 of the handle hub, andonly one projection 23 is provided on the handle. No guide groove orrotary groove is provided in the sidewall 17. Although only oneprojection 23 is provided, the container door still cannot be opened bylawbreakers because the guide groove 20 and the rotary groove 19 arewell concealed and cannot be damaged.

INDUSTRIAL APPLICABILITY

As an improvement over prior art, an anti-theft handle hub with a guidegroove and a rotary groove and an anti-theft handle with a projectionare adopted in the present invention. Even if the rivet of the handleand the handle hub of container is chiseled off or damaged, the guidegroove and rotary groove inside the handle hub as well as the projectionof the handle cannot be damaged since they are well concealed. When thecontainer is locked, the projection is disengaged from the guide grooveand is located inside the rotary groove after rotating a certain angle,and it has to return from the guide groove if it needs to be extricated,which makes it impossible for the handle to be disengaged from thehandle hub. Therefore the container cannot be opened, theft is avoidedand the security of containerized cargo is guaranteed.

1. A locking bar anti-theft device for container, installed on a door ofthe container, comprising a lock bar, a handle hub, a rivet, a handle, aretainer plate and a retainer catch; the handle hub consisting ofU-shaped components or cloak-like components, on which a cavity isprovided for the front end of the handle to be inserted; rivet holes areprovided on the opposite sidewalls of the cavity; one of the oppositesidewalls is fixed on the lock bar of the door of the container; a rivethole is provided on the front end of the handle to be hinged with thehandle hub; when the container is locked, the front end of the handle isinserted into the cavity of the handle hub and is hinged to the handlehub by the rivet; and the other end of the handle is held between theretainer plate and the retainer catch; wherein a projection is providedon a plane by the side of the rivet hole at the front end of the handlecorresponding to the sidewall of the handle hub; a guide groove isprovided in the inner surface of the sidewall of the handle hub so as toguide the projection of the handle to enter the cavity of the handlehub; a rotary groove is provided in the inner surface of the sidewall ofthe handle hub so as to rotate the projection around the rivet after thehandle is hinged to the handle hub; the guide groove communicates withthe rotary groove; when the handle and the handle hub are hinged by therivet, the projection is disengaged from the guide groove and enter therotary groove; when the container is locked, the other end of the handleis fixed after driving the projection to rotate a certain angle insidethe rotary groove.
 2. The locking bar anti-theft device for containeraccording to claim 1, wherein the projection is provided respectively oneach plane by the side of the rivet hole at the front end of the handlecorresponding to the opposite sidewalls of the handle hub, and the guidegroove and the rotary groove are provided respectively in the innersurfaces of the sidewalls of the handle hub to engage with theprojection.
 3. The locking bar anti-theft device for container accordingto claim 1 or 2, wherein more than two projections are provided onplanes by the side of the rivet hole at the front end of the handlecorresponding to the sidewalls of the handle hub, and the guide groovesand the rotary groove are provided in the inner surfaces of thesidewalls of the handle hub to engage with the projections.
 4. Thelocking bar anti-theft device for container according to claim 1 or 2,wherein the rotary groove is not provided with wall on the side adjacentto the rivet hole of the handle hub.
 5. The locking bar anti-theftdevice for container according to claim 1 or 2, wherein entry of theguide groove is located in the inner surface of the sidewall of thehandle hub under the horizontal position of the handle when thecontainer is locked.
 6. The locking bar anti-theft device for containeraccording to claim 1 or 2, wherein the width of the guide groove isslightly greater than the width of the projection in the direction ofentering the guide groove.
 7. The locking bar anti-theft device forcontainer according to claim 3, wherein the width of the guide groove isslightly greater than the width of the projection in the direction ofentering the guide groove.
 8. The locking bar anti-theft device forcontainer according to claim 1, wherein the angle is greater than anangle in which the handle can rotate between the retainer plate and theretainer catch.